/*
 *  Copyright 2008-2010 the original author or authors.
 * 
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 * 
 *       http://www.apache.org/licenses/LICENSE-2.0
 * 
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 *  under the License.
 */
package org.openaecfm.spf.io.constraint;

import java.util.ArrayList;

import org.openaecfm.model.constraint.Constraint;
import org.openaecfm.model.constraint.LogicalOperatorEnum;
import org.openaecfm.model.constraint.Objective;
import org.openaecfm.model.constraint.ObjectiveEnum;
import org.openaecfm.spf.io.AbstractEntityInstanceInputImpl;
import org.openaecfm.spf.io.IAppDataManager;
import org.openaecfm.spf.io.IEntityInstanceOutput;
import org.openaecfm.spf.io.IEntityInstanceUtilInput;
import org.openaecfm.spf.io.IEntityInstanceUtilOutput;
import org.openaecfm.spf.model.DollarParameter;
import org.openaecfm.spf.model.EntityInstance;
import org.openaecfm.spf.model.EntityInstanceNameParameter;
import org.openaecfm.spf.model.EnumerationParameter;
import org.openaecfm.spf.model.ListParameter;
import org.openaecfm.spf.model.NodeType;
import org.openaecfm.spf.model.Parameter;
import org.openaecfm.spf.model.SimpleEntityInstance;
import org.openaecfm.spf.model.StringParameter;

public final class ObjectiveIO extends
		AbstractEntityInstanceInputImpl<Objective> implements
		IEntityInstanceOutput<Objective> {
	private IEntityInstanceUtilInput<Constraint> utilInput;
	private IEntityInstanceUtilOutput<Constraint> utilOutput;

	public void setUtilOutput(IEntityInstanceUtilOutput<Constraint> utilOutput) {
		this.utilOutput = utilOutput;
	}

	/**
	 * {@inheritDoc}
	 */
	@Override
	public String exportSPF(Objective pojo, IAppDataManager appDataManager) {
		SimpleEntityInstance ei = new SimpleEntityInstance("IFCOBJECTIVE",
				appDataManager.getName(pojo));

		utilOutput.exportSPF(pojo, ei, appDataManager);

		// Set BenchmarkValues
		if (pojo.getBenchmarkValues() == null
				|| pojo.getBenchmarkValues().isEmpty()) {
			ei.addParameter(DollarParameter.getInstance());
		} else {
			ListParameter l = new ListParameter();
			for (Object o : pojo.getBenchmarkValues()) {
				l.add(new EntityInstanceNameParameter(appDataManager
						.getName(o)));
			}
			ei.addParameter(l);
		}

		// Set LogicalAggregator
		if (pojo.getLogicalAggregator() == null) {
			ei.addParameter(DollarParameter.getInstance());
		} else {
			ei.addParameter(new EnumerationParameter(pojo
					.getLogicalAggregator()));
		}

		// Set ObjectiveQualifier
		ei.addParameter(new EnumerationParameter(pojo.getObjectiveQualifier()));

		// Set UserDefinedQualifier
		if (pojo.getUserDefinedQualifier() == null) {
			ei.addParameter(DollarParameter.getInstance());
		} else {
			ei.addParameter(new StringParameter(pojo.getUserDefinedQualifier(),
					StringParameter.UTF_8));
		}

		return ei.toString();
	}

	/**
	 * {@inheritDoc}
	 */
	@Override
	protected Objective doCreateObject() {
		return new Objective();
	}

	/**
	 * {@inheritDoc}
	 */
	@Override
	public void resolveReferenceParameter(EntityInstance ei, Objective pojo,
			IAppDataManager appDataManager) {
		utilInput.resolveReferenceParameter(ei, pojo, appDataManager);

		SimpleEntityInstance sei = (SimpleEntityInstance) ei;

		// Set BenchmarkValues
		Parameter benchmark = sei.getParameter(7);
		if (benchmark.getNodeType() == NodeType.LIST) {
			ListParameter l = (ListParameter) benchmark;
			if (pojo.getBenchmarkValues() == null) {
				pojo.setBenchmarkValues(new ArrayList<Constraint>());
			}

			for (Parameter p : l) {
				EntityInstanceNameParameter e = (EntityInstanceNameParameter) p;
				pojo.getBenchmarkValues().add(
						(Constraint) appDataManager.getObject(e
								.toInstanceName()));
			}
		}
	}

	public void setUtilInput(IEntityInstanceUtilInput<Constraint> utilInput) {
		this.utilInput = utilInput;
	}

	@Override
	protected void resolveNotReferenceParameter(EntityInstance ei,
			Objective pojo) {
		SimpleEntityInstance sei = (SimpleEntityInstance) ei;

		utilInput.resolveNotReferenceParameter(ei, pojo);

		// Set LogicalAggregator
		Parameter logicalAggregator = sei.getParameter(8);
		if (logicalAggregator.getNodeType() == NodeType.ENUMERATION) {
			EnumerationParameter e = (EnumerationParameter) logicalAggregator;
			pojo.setLogicalAggregator(LogicalOperatorEnum.valueOf(e
					.toEnumString()));
		}

		// Set ObjectiveQualifier
		EnumerationParameter oq = (EnumerationParameter) sei.getParameter(9);
		pojo.setObjectiveQualifier(ObjectiveEnum.valueOf(oq.toEnumString()));

		// Set UserDefinedQualifier
		Parameter userq = sei.getParameter(10);
		if (userq.getNodeType() == NodeType.STRING) {
			StringParameter s = (StringParameter) userq;
			pojo.setUserDefinedQualifier(s.toUTF8());
		}
	}
}
